| Ringerike Osteopati Klinikk Da | Hønefoss | 2013 |
| Ringerike Spesialistsenter AS | Krokkleiva | 2018 |
| Ringerike Tannlegesenter AS | Hønefoss | 2005 |
| Ringerike Øre Nese Hals AS | Hønefoss | 2016 |
| Ringstad Klinikken AS | Straumsjøen | 2021 |
| Ringve Legesenter Da | Trondheim | 2010 |
| Ringvollhelse AS | Hobøl | 2019 |
| Riqueza AS | Grimstad | 2022 |
| Risan Granlund Holding AS | Trondheim | 2021 |
| Riseup AS | Oslo | 2023 |
| Risheim Kiropraktorklinikk AS | Lillehammer | 2022 |
| Risk-Assessment AS | Trondheim | 2020 |
| Riska Legesenter AS | Hommersåk | 2018 |
| Riska Naprapatklinikk AS | Hommersåk | 2022 |
| Risoro AS | Ørskog | 2024 |
| Rissa Fysioterapi Da | Rissa | 1998 |
| Risvollan Fysioterapi Da | Trondheim | 2026 |
| Risvollan Legesenter AS | Trondheim | 1993 |
| Risvollan Medisinske Senter AS | Trondheim | 1993 |
| Risvollan Treningssenter AS | Trondheim | 1992 |
| Risør Fysikalske Institutt AS | Risør | 2020 |
| Risør Tannlegesenter Ans | Risør | 2001 |
| Rita Brox AS | Tromsdalen | 2019 |
| Rita Langseth's Fysioterapi AS | Mo I Rana | 2010 |
| Rita Logoped AS | Stange | 2025 |
| Ritha's Fotterapi AS | Elverum | 2018 |
| Rivik Psykologi AS | Oslo | 2016 |
| Rjukan Tannhelsesenter AS | Rjukan | 2001 |
| Rjukan Tannlegesenter AS | Rjukan | 2026 |
| RM Clinical Concepts AS | Trondheim | 2025 |
| Ro-Sa AS | Oslo | 2010 |
| Roa Medisinske Senter AS | Lunner | 2003 |
| Roan Frivilligsentral SA | Brandsfjord | 2009 |
| Roar Søvik AS | Hvam | 2022 |
| Roberg Gaard AS | Våle | 2008 |
| Robert Hart Physiotherapy AS | Stavanger | 2026 |
| Robin AS | Oppegård | 1999 |
| Robosurge AS | Lier | 2026 |
| Robrygga Helse AS | Namsos | 2008 |
| Robrygga Legekontor AS | Namsos | 2016 |
| Robrygga Øye AS | Namsos | 2002 |
| Robua AS | Engelsviken | 2025 |
| Robust Forvaltning AS | Oslo | 2022 |
| Robust Helse AS | Oslo | 2023 |
| Robust Holdings AS | Bryne | 2021 |
| Robust Kropp Og Helse AS | Notodden | 2022 |
| Robust Trening Og Fysioterapi AS | Bryne | 2019 |
| Robust Veterinærfysioterapi AS | Stabekk | 2021 |
| Robust Villmarksterapi AS | Hol | 2022 |
| Roche Diagnostics Spain | Es-08174 Sant Cugat Del Vallés | 2024 |
| Rodahl Consulting AS | Høvåg | 2005 |
| Rodahl Dental AS | Alta | 2026 |
| Rodenes Ungdoms Og Aktivitetshjem Ans | Kristiansand S | 1997 |
| Rodrigues & Principe AS | Rakkestad | 2020 |
| Rofono AS | Notodden | 2002 |
| Rogaland a- Senter AS | Oslo | 2004 |
| Rogaland HMS AS | Sola | 2010 |
| Rogaland Omsorg AS | Sola | 2012 |
| Roger Trana Spinetrog AS | Oslo | 2020 |
| Rogl AS | Hafslundsøy | 2020 |
| Roja Hjemmeservice Da | Øyer | 2005 |
| Rokderm AS | Hafrsfjord | 2016 |
| Roland Helse & Omsorg AS | Oslo | 2023 |
| Rolf Kristian Mathisen AS | Oppdal | 2023 |
| Rolf Løvøy AS | Nesttun | 1995 |
| Rolf Øines AS | Skedsmokorset | 2000 |
| Roligmassasjeklinikk AS | Fredrikstad | 2024 |
| Rolland Legesenter Da | Ulset | 2006 |
| Rollsløkken Helse AS | Hamar | 2019 |
| Rollsløkken Legetjenester AS | Hamar | 2024 |
| Rolvsøy Fysioterapi AS | Rolvsøy | 1989 |
| Rolvsøy Legekontor Da | Rolvsøy | 2009 |
| Romano AS | Oslo | 2018 |
| Romarheim Fysioterapi AS | Hjelmås | 2014 |
| Romedal Fysioterapi AS | Romedal | 2021 |
| Romedal Legesenter Da | Romedal | 2014 |
| Romerike Allmennspesialistene AS | Lillestrøm | 2015 |
| Romerike Estetikk AS | Kløfta | 2026 |
| Romerike Hjertesenter AS | Lillestrøm | 2015 |
| Romerike Legesenter Da | Kløfta | 2017 |
| Romerike Manuellterapi AS | Nannestad | 2021 |
| Romerike Spesialistklinikk Lege Og Tannlege AS | Lillestrøm | 2013 |
| Romerike Tannlegesenter AS | Kløfta | 2023 |
| Romerike Urologisk Senter AS | Lørenskog | 2018 |
| Romeriksklinikken AS | Fjellhamar | 2018 |
| Romsdalsklinikken AS | Molde | 2012 |
| Romslig På Roth AS | Larkollen | 2026 |
| Romundstad Holding AS | Ålesund | 2022 |
| Rona Fysioterapi Og Trening AS | Kristiansand S | 2021 |
| Ronsen Holding AS | Gjerdrum | 2008 |
| Roos Enterprise AS | Langhus | 2021 |
| Roschtorp AS | Lillestrøm | 2024 |
| Rose Bidco AS | Oslo | 2023 |
| Rose Midco AS | Oslo | 2023 |
| Rose of Sharon Foundation Incorperated | 00969 Guaynabo | 2018 |
| Roseby Tannlegesenter AS | Molde | 2026 |
| Rosenberg Holding AS | Bergen | 2013 |
| Rosenhoff Legegruppe AS | Oslo | 2021 |
| Rosenhoff Tannklinikk AS | Oslo | 2017 |
| Rosenhoffpsykologene AS | Oslo | 2019 |